Tuning for the 2011 up Mopar has been a much-anticipated occurrence, so we had to acquire one of these units and check it out for ourselves. Luckily, Diablosport is located right here in Florida, so we went there in person to pick up one of their Trinity units. A few days later Angela Hawthorne, one of our readers and local Mopar club member, brought her 2011 Dodge Challenger R/T to our shop, so that we could install the performance tune and test the results on our chassis dyno.

The Diablosport Trinity T-1000 comes with everything needed to tune the vehicle, including the unit itself, a six foot long OBD II cable, suction cup mount, manual and CD, and six foot mini USB to USB cable to connect the unit to a computer for registration and updates. Installing the tuner is as easy as plugging the unit into the car’s OBD II port under the dash, and following the on-screen prompts to remove the factory tuning and install one of the pre-set Trinity tunes. Menu items can be selected by either the physical buttons or the touch screen, but we found the touch screen to be easiest. With the Trinity plugged in, we chose the packaged tune for 93 octane fuel, and the Trinity prompted us through the setup procedure. The unit actually saves the factory tune to its memory before installing the performance tune, and the factory settings can be re-installed at any time.

Angela’s 2011 Challenger R/T had already been modified with an aftermarket cold air kit and aftermarket exhaust behind the factory catalytic converters. To establish a baseline, we strapped the Challenger to our chassis dyno to measure the 5.7’s torque and horsepower prior to installing the tune. Installing the tune only takes a couple of minutes, and involves turning the car’s ignition on and off several times as prompted by the Trinity. With the tune installed, we made two more dyno pulls to measure the improvements to torque and horsepower not just at peak rpm, but throughout the Hemi’s rpm range.

A common misnomer regarding torque and horsepower is that improvements at peak are all that matter. In reality, we are much more concerned with average torque and horsepower increases as an increase in power through the midrange will more greatly benefit a car’s performance. Since each car is different, as well as each dyno, there is no hard number associated with a specific tuner or car with regards to how much improvement can be expected. As the dyno graphs below show, the 5.7 Hemi equipped 2011 Dodge Challenger R/T we tested showed gains in peak torque and horsepower, with peak horsepower climbing from 333 to over 341. Even more significant improvements were shown through the midrange rpm with torque more than 10 lb-ft higher at some engine speeds. It’s these midrange torque and horsepower improvements that really give the driver a seat of the pants feeling that the car is quicker, so we feel that Diablosport did a good job in this regard.

After driving the car for a couple of days, Angela reported that throttle response, off the line performance, and overall performance had definitely improved. She also claims that the other features of the Trinity don’t just make her Challenger more fun to drive, but are useful as well. Since this is the first version of tuning for the 2011 and up Hemis, we’re sure Diablosport will make revisions to their Trinity software for even better results in the future. A nice benefit of the Trinity is that as updates to the tuning software become available, Angela can download them directly from Diablosport’s website free of charge. And if Angela decides to add a supercharger or nitrous to her Hemi, the Trinity will allow custom tuning to make sure she gets maximum power without damaging the engine in her car. The features, additional power, and peace of mind the Trinity give make this unit one of the best buys for a late model Mopar.

Costs for Diablosport Trinity Tuner: $599

Run Notes: Baseline

3.40 175.56 271.19
3.50 202.59 303.99
3.60 237.78 346.91
3.70 244.09 346.48
3.80 250.19 345.79
3.90 262.71 353.79
4.00 273.41 358.99
4.10 283.69 363.41
4.20 290.19 362.89
4.30 293.41 358.37
4.40 305.05 364.13
4.50 312.00 364.15
4.60 312.04 356.28
4.70 316.48 353.65
4.80 320.73 350.94
4.90 329.22 352.88
5.00 330.84 347.52
5.10 331.91 341.81
5.20 333.91 337.25
5.30 325.67 322.73
5.40 316.13 307.47
5.50 313.35 299.23

Run Notes: Diablo Tuner

3.30 208.72 332.20
3.40 217.93 336.64
3.50 232.62 349.07
3.60 241.11 351.76
3.70 246.01 349.21
3.80 254.86 352.25
3.90 263.11 354.33
4.00 273.55 359.18
4.10 284.22 364.09
4.20 289.24 361.70
4.30 301.65 368.44
4.40 310.11 370.17
4.50 315.17 367.85
4.60 313.73 358.21
4.70 316.69 353.89
4.80 322.42 352.79
4.90 330.27 354.01
5.00 337.35 354.36
5.10 336.78 346.83
5.20 341.87 345.29
5.30 339.83 336.76
5.40 333.02 323.90
5.50 329.17 314.33

As the dyno numbers show, the Trinity-using the 93-octane performance tune, resulted in both torque and horsepower gains throughout the engine's rpm range. Peak horsepower was up from 333.91 to 341.87 and peak torque rose from 364.15 to 370.17. Better yet, average torque between 3,500 and 5,500 rpm climbed from 344.7 to 351.8 and averaged power in the same rpm range rose to 300.6 from 294.4. Remember these numbers are at the rear wheels, and flywheel numbers would be 25-30 percent higher.

Delray Beach